中药制剂大多数是将中药先用水煎煮,然后对水煎液进行处理,根据工艺制成所需剂型。药液的浓度直影响药物的煎出量。煎出量可分为实际煎出量和最大煎出量。所谓最大煎出量,就是把药物可能被煎出的部分全部煎出的量,实际煎出量是实际煎煮过程中所得到的煎出量。用煎出量确定煎煮时的加水量,并通过两个煎出量的比较,从而 Most traditional Chinese medicine preparations decoct the Chinese medicine first with water, then treat the decoction solution and make the required dosage form according to the process. The concentration of the liquid directly affects the amount of the drug. The amount of fried can be divided into the actual amount of fried and the maximum amount of fried. The so-called maximum amount of frying is the amount of frying out of the portion where the medicine may be decocted. The actual amount of frying is the amount of frying produced during the actual decoction. The amount of water added during decoction is determined by the amount of decocted water, and the comparison of the amount of decoction is performed, so that